CLEAN: Kadhafi forces in retreat as rebels advance on Tripoli

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What is the speaker likely doing when they repeatedly say 'yeah, sure'?

• Confirming or agreeing

• Introducing a new topic

• Expressing uncertainty

• Disagreeing with a statement

What does the word 'But' typically indicate in a conversation?

• Agreement with the previous statement

• A continuation of the same idea

• A contrast or exception to the previous statement

• An end to the conversation